Site

State

PM AQI* (ug/m3)

Garden Valley

ID

8

Idaho City

ID

7

Idaho Falls / Penford

ID

6

Shoshone Bannock Tribes

ID

4

Vernal #4

UT

4

Roosvelt

UT

4

Jerome Mack

NV

4

Twin Falls PM25

ID

4

GreenValley

NV

4

Spanish Fork

UT

4